Optimization of the Cu2ZnSnS4 nanocrystal recipe by means of photoelectrochemical measurements

被引：18
|
作者：
Vaccarello, Daniel [1 ]
Tapley, Amy [1 ]
Ding, Zhifeng [1 ]
机构：
[1] Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada
来源：
RSC ADVANCES | 2013年 / 3卷 / 11期
基金：
加拿大自然科学与工程研究理事会;
关键词：
SOLAR-CELLS; THIN-FILMS; PHOTOVOLTAICS; DECOMPOSITION; FABRICATION; EFFICIENCY; CUINSE2;
D O I：
10.1039/c2ra23163h
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Cu2ZnSnS4 nanocrystals (NCs) were synthesized via a low-cost one-pot method. The recipe was optimized by using photoelectrochemical measurements of NC films in contact with a methyl viologen solution. Non-stoichiometric copper-rich and zinc-poor starting molar ratios provided the best overall photovoltaic effect. Other analytical techniques were used to further identify the NC composition, topography and crystallinity. The oxidation states were found to be 1+, 2+, 4+ and 2- for copper, zinc, tin and sulphur, respectively.
引用
收藏
页码：3512 / 3515
页数：4
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